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New exercises from Khan Academy 2020-12-02T22:44:38.000000
Aggiornato: 1 ora 14 min fa

### Convert units word problems (metrics)

Mer, 2020-10-28 15:31
Solve 1-step word problems involving metric units of measure and time.

### Dividing unit fractions by whole numbers visually

Mar, 2020-10-27 22:42
Practice dividing unit fractions by whole numbers with visual models.

### Solubility

Lun, 2020-10-26 23:19
Check your understanding of the relationship between solubility and intermolecular forces in this set of free practice questions designed for AP Chemistry students.

### Separation of solutions and mixtures chromatography

Lun, 2020-10-26 23:18
Check your understanding of chromatography and distillation in this set of free practice questions designed for AP Chemistry students.

### Explicit formulas for geometric sequences

Dom, 2020-10-25 17:00
Solve problems such as: The first four terms in a geometric sequence are 1/3, 1, 3, and 9. Find an explicit formula for the sequence.

### Explicit formulas for arithmetic sequences

Dom, 2020-10-25 16:56
Solve problems such as: The first four terms in an arithmetic sequence are 12, 5, -2, and -9. Find an explicit formula for the sequence.

### Manipulate formulas

Dom, 2020-10-25 13:40
Solve multi-variable formulas for a specific variable in order to solve some word problems.

### Representations of solutions

Ven, 2020-10-23 19:47
Practice identifying and interpreting particulate models of solutions in this set of free questions designed for AP Chemistry students.

### Solutions and mixtures

Ven, 2020-10-23 19:46
Practice calculations involving molarity in this set of free practice questions designed for AP Chemistry students.

### Area of rectangles with partial arrays

Gio, 2020-10-22 15:52
Find the area of rectangles when not all square units are shown.

### Disruptions to ecosystems

Gio, 2020-10-22 15:42
Test your knowledge of disruptions to ecosystems!

### Biodiversity

Gio, 2020-10-22 15:41
Test your knowledge of biodiversity!

### Community ecology

Gio, 2020-10-22 15:40
Test your knowledge of community ecology!

### Energy flow through ecosystems

Gio, 2020-10-22 15:38
Test your knowledge of energy flow through ecosystems!

### Responses to the environment

Gio, 2020-10-22 15:35
Test your knowledge of responses to the environment!

### Deviation from ideal gas law

Gio, 2020-10-22 00:46
Check your understanding of how real gases deviate from ideal behavior in this set of free practice questions designed for AP Chemistry students.

### Geometric distributions

Mar, 2020-10-20 17:21
Practice calculating the mean and standard deviation of geometric distributions.

### Understanding decomposing figures to find volume

Mar, 2020-10-20 17:19

### Symbols practice: The gradient

Mar, 2020-10-20 17:19
Decipher vector, scalar, or nonsense from an expression involving the gradient, divergence, and curl.

### Extend geometric sequences: negatives & fractions

Mar, 2020-10-20 09:41
Find the next term in a geometric sequence. The problems in this quiz involve relatively difficult calculations.